Machinery eob



STERLING BREWER, OF ROBERTSON COUNTY, TENNESSEE.

MACHINERY FOR SHAVING SHINGLES.

Specification of Letters Patent No. 5,564, dated May 16, 1848.

To all whom t may concern:

Be it known that I, STERLING BREWER, of the county of Robertson andState of Tennessee, have invented a new and useful Machine for ShavingShingles; and I do hereby declare that the following is a full, clear,and exact description of the construction and operation of the same,reference being had to the annexed drawings, making a part of thisspecication in which- Figure l represents the upper side of the topframe and cutting knife. Fig. 2, under side of same. Fig. et,longitudinal section of the machine.

No. l (See Fig. 5) is a piece of cast iron attached to the forward endof the lever (No. 2) by a hinge, which enables it to press against theshoulders of the mortise during the action of the top knife (No. 4) itprojects above the bottom of the cutting box, and holds the block firmlyunt-il the upper, part is shaved, it is then pressed below the bottom ofthe cutting boX by the beveled notch (No. 3) where it remains until theframe Fig. l is brought back when the weightof point No. 2 of the leverrestores it to its original position.

The forward motion of the knife No. 4.

Fig. 3, bottom frame; Fig. 5, lever and rest attached to it.

Construction of machine: The bottom frame is constructed of 3 pieces ofscantling 4 by S inches and l0 feet long, framed to- 3 inches so as torise no higher than the i bottom of the groove or rabbet in the 2outside pieces in which the top frame works. Two knives each 10 incheslong, or but 1 knife 2O inches long, are made permanent at or near themiddle of the frame by bolts, the heads of which are countersunk on theface or fiat side of the knife which is placed uppermost. The bolts aresecured by taps on the under side.

The top frame should be about half the length of the bottom frame andframed in the same way of 3 longitudinal pieces, only the pieces shouldbe lighter and all of the same dimensions, say 3 or 4 inches square; theknives are placed at the middle of the frame and are let into the woodso as to be even with the bottom surface of the frame or nearly so, theflat sides are placed down and they are secured by bolts also. Thisframe works in grooves or rabbets in the top of the outside pieces ofthe bottom frame.

The machine is worked by a pitman attached to the back end of the topframe and connects with the running gear.

A patent is claimed on- The application of the second, or bottom knife,and the adaptation of the machine, as represented in the diagram by theparts No.s l and 2 or lever and rest attached, No. 3 or beveled notch;No. 7, or movable floor; Nos 9 and l0, or hollow and angle in top frame;and No. 1l or bottom knife; to shaving both sides of the shingle withoutturning the block and at a single stroke of the pitman.

STERLING BRENNER.

Witnesses NATHAN MoRRIs, SARRAH SHAW.

